Yohn Royce

An old and famous lord, the tall and powerful Yohn Royce—named Bronze Yohn for the reputedly-ancient, rune-covered bronze armor he wears—is the most powerful vassal of House Arryn. He has three sons, the second youngest having been a member of Renly’s Rainbow Guard and dying at the hand of Loras Tyrell following Renly’s death, while the youngest was Ser Waymar Royce, who was killed by the Others beyond the Wall.

Yohn’s other sons besides Waymar Royce have yet to be mentioned, so may not exist in the series, or at least not in the same roles. It should be noted that Yohn Royce was present in King’s Landing for the Hand’s tournament in the novels, but this fact has also not been noted in the show.